The utility model relates to a technical field of scission reaction system, concretely relates to vehicular scission reaction system, including setting up in the feed arrangement on -vehicle body andthat connect gradually, schizolysis reaction unit, material sediment burner, schizolysis reaction unit includes a plurality of reation kettle that establish ties side by side, and each reation kettleall is provided with electromagnetic heating device, the noncondensable gas emits into the heating of burning of material sediment burner in the vapor recovery system heat treatment device, expects that the flue gas waste heat that sediment burner gets rid of is used for preheating feed arrangement's raw materials, and then can reduce the energy consumption. And because this scission reaction system is the vehicular, consequently can treat at each that the treatment material point removes in a flexible way. In addition, because schizolysis reaction unit be a plurality of reation kettle that establish ties side by side, make its structure more compact, and each reation kettle is electromagnetic heating, has and heat up soon, advantage that the efficiency of cracking is high to can increasethe regulative ability of temperature, prevent that the material is heated inhomogeneously and warp.